Transactions of Materials and Heat Treatment

Title：Drawing and numerical simulation of hemispherical aluminum alloy part included viscous medium of stainless steel

Authors： Gao Tiejun Chen Peng Wang Yao Wang Zhongjin

Unit： Shenyang Aerospace University Harbin Institute of Technology

KeyWords： hemispherical aluminum alloy part viscous medium force blank holder force force field stainless steel

ClassificationCode：TG386；TG302

year,vol(issue):pagenumber：2014,39(9):17-20

Abstract：

The hemispherical aluminum alloy part is commonly used in the field of aviation. Due to its characteristics of thin wall and large deformation, it is usually formed through multi-step process. In order to improve the quality of the products and production efficiency, the viscous medium drawing technology was proposed to coat hemispherical aluminum alloy part using stainless steel. The above process was simulated numerically using the finite element software ANSYS/LS-DYNA. The effect of blank holder force (BHF) and viscous medium force on the viscous medium drawing process was analyzed, and further, the regularity of forming part thickness distribution, flange area materials inflow to the deformation area and viscous medium force field were obtained under different BHF load curves. Simulation results were verified through the experimental results. The results show that viscous medium drawing the hemispherical aluminum alloy part can improve the aluminum alloy deformation ability and form parts directly under an appropriate variable BHF curve.

Funds：

辽宁省自然基金资助项目(2013024014)；辽宁省教育厅资助项目(L2012046)

高铁军（1977-），男，博士，副教授

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